Improvement in machinery for setting and trimming edges of boot and shoe soles



A. C. CAREY.

Machinery for Setting and Trimming Edges of Boot and Shoe Soles.

M. VIVI Vm/ m, g .wdY u.. j m W V, m .M P m UNITED l STATES `PATENT CDEEIoE AUGUSTUS o. CAREY, on MALDEN, MASSACHUSETTS.

IMPROVEMENT IN MACHINERY FOR SETTING AND TRIMMING EDGES 0F BGOT AND SHOE SOLES.

Specification forming part of Letters Patent B10145552, dated February 17, 1874; application filed January 30, 1874.

To all whom it may concern! Be it known that I, AUGUSTUS C. CAREY,

l of Malden, Middlesex county, Massachusetts,

have invented certain new and useful Improvements in Machinery f or Setting or Trimming the Edges of the Soles of Boots and Shoes, of which the following is a specification:

My invention has 4reference to what are termed in the trade edge-setting machines.77 The invention principally relates to the setting or trimming tool and means for giving it movement. It also has relation to the jacking mechanism. The setting-tool is mounted on a supporting-arm, and is capable of vertical, lateral, and tilting or tipping motions with relation to the jack or jack mechanism. In lieu of giving to the tool a rotaryT movement, I impart to it a reciprocating movement, so that it will reciprocate bodily over the surface on which it y acts. Vhen so actuated it is effective in operation, and can be more readily manipulated, while the mechanism for moving it is less complicated and better adapted for general use than has heretofore been the case. I also combine with the mechanism operating to set the crank-pin at varied distances from its center of motion, as described in my Letters Patent No. 132,749, dated November 5,187 2, certain parts designed, in part, to give greater range of movement and adjustment to the crank-pin, and, in part, to steady the setting-tool and to cause its supporting-arm to reciprocate as nearly as possible in a right line, without having the rocking motion it would have were it connected directly to the crank-pin.

These and other features of my invention can, however, best be explained and understood by reference tothe accompanying drawings, in which- Figure l is a perspective View of an edgesetting machine embodying my improvements. Fig. 2 is a central section of the crank-wheel detached. Fig. 3 is a longitudinal vertical central section of jack mechanism, one of the two jacks being represented.

The setting-tool A,Which may be of any suitable construction, consisting of one or more blades or knives and a shank or handle, is mounted or swiveled on the end of a supporting-arm, B, to which a back-and-forth movement is imparted from the crank or wrist pin a 'of crank-wheel C, this wheel being xed on a shaft, D, which is Supported in proper bearings on the frame E of the machine, and

rotated by belting extending from a suitable driving-pulley over the fast pulley F. The other pulley, F', is an ordinary loose pulley, to which the belt can be shifted in the usual way when it is desired to stop the machine.

In this way a reciprocatory movement is given to the setting-tool.

The tool A, in this instance, is a double tool, consisting of a shank or handle, b, capable of turning in bearings in the supporting arms or yoke c, attached to, and branching from, the sleeve c', that is attached to, and can turn and revolve on the end of, the arm B. On each end of the shank or handle b is a setting or trimming blade or knife, d or df, which, by reversing or rotating the tool, can be used interchangeably, according to the requirements of the work; and either knife, when in action, can be turned on the aXis ofthe handle b and tilted on the axis B, so a's to better adapt itself to the portion of the sole-edge operated on. The tool-supporting Y arm may be connected directly with the crank-pin, as described in my aforesaid Letters Patent No. 132,749; but, in a machine intended to trim edges, it is desirable that the setting-tool should reciprocate as nearly as may be in a right line without rocking; and, therefore, in lieu of making a direct connection with the crank-pin, I swivel it or attach it by a sleeve to a stud, c, projecting laterally and horizontally from an intermediate arm or lever, G, of considerable length, mounted at its lower end on a horizontal stud or pivot, G', on frame E, which pivot is at such distance from the upper end of the arm ,that

the rocking motion of the arm at said end in G derives motion from the crank-wheel G, through the medium of a com'iecting-rod, g, mounted at one end on the crank-pin, and provided at the other end with a laterallyprojecting stud, that works in a vertical slot,

g', in the upper end ot` arm G'. The crank-pin a is arranged so that its distance from its center of motion may be clnmged to vary the length of stroke ot' the tool, being thus actuated by a slide, 71 which is operated by mech anism similar to that described and shown 1n my Patent No. 132,749, and therefore requiring no particulardescription here. The motion of the mechanism that actuates the slide is obtained by the treadle Il, connected by the rod H1 with the main lever H2 ot the slide operating mechanism. ,\\f'ith the main lever ll.Z I combine a stop mechanism,consisting of two oppositely-arraiiged adjustable regulating or limiting screws, 7i, between which the front armof thc lever plays. This mechanism has, however, been fully described and claimed in my Let-ters Patent for improved burnishing-machine, ot' even date herewith, and it requires, thereibre, no detailed description here.

I have found it advantageous to provide an adjustment ot' the crank-pin in addition to that which I have provided for it in previous machines, the effect of this additional adjustment being to increase or decrease the distance at which the pin stands normally from its center of motion. To this end, instead of attaching the pin directly to the slide 71, I fix it to an auxiliary plate, l1', held to slide h by setscrews i, extending through longitudinal slots j in said plate. By loosening the setscrews, the plate can be adjusted in one direction or the other to any extent within the limits of the slots, and when so adjusted is clamped to the slide by tightening up the setserews.

In connection with the trimming' mechanism, I employ a jacking mechanism to present the shoe or boot in proper position to the action of the'trimming-tool. This jacking mechanism, which may be of any ordinary or suitable construction, consists, in the present instance, of the jack proper, I, mounted on a jack-wheel, J, capable of rotating 011 a horizontal stud, 7i', projectingr from a slide, K, supported in suitable guides on head-block Il. The trimming-tool has capacity for all necessary movement, to ena-ble it to adapt itself to the various portions of the sole-edge to be operated upon; and the combined rotary and sliding motions of the jack permit all portions ot' the sole-edge to be brought properly under the trimming-tool.

I prefer to employa double jacking mechanism, consisting ot' a head-block, L, pivoted at its center so as to revolve on a vertical axis, and carrying at cach end a jackiu g mechanisln. Under this arrangement the workman can reverse the head-block, and bring each jack in succession to the trimming-tool, while an attendant, during the time the shoe on one jack is being trimmed, can remove from the other jack the shoe just finished, and replace it by another shoe to be operated ou in its turn.

I give no special description. ot' this arrangement here, however, inasmuch as the same is fully described in and makes part of my Letters Iatent for 'improved burnishing-machine of even date herewith. j

In Figs. 1 and a very convenient mechanism for jacking the boot or shoe is represented.

On the face of the wheel at one edge is xed the usual heel post or stud m. At the portion of the edge of the wheel diametrically oppo site the post is a bearing-piece, a, in which turns a spindle or rod, 0, held to the bearing piece by collars, in the usual way. On the outerl end of this spindle is a thumb-wheel, by which it may be turned. The inner end of the spindle is screw-threaded, and enters and engages a screw-threaded socket in a wedgepiece, i', that can slide on the face of the jackwheel, being moved in one direction or the other by turning thc screw spindle. This wedge slides between side pieces or guides s, which are formed on their inner faces with guide-grooves to receive the toe-rest t. The toc-rest can move out and in in these grooves. The wedge i lies under the toerest.

In using this mechanism, the last is fixed on the heel-post in the usual way. rIhe screw spindle is then revolved in the direction nec essary to cause the wedgeto advance under the toe-rest, and so gradually force it outward until it is jammed tightly against the last, as indicated in Ifig. 3. rIhe last can thus be held most firmly. A reverse movement ofv the wedge will, of course, loosen the toe-rest.

A series of guide-groovcs are formed in the side guides s, as shown, so that the toe-rest may be set nearer to or farther from the heelpost, as occasion demands.

Having described my invention, and the manner in which the same is or may be carn ried into effect, what I claim, and desire to sen eure by Letters Iatent, is--e l. In an. organized machine for setting or trimming the edges of soles of boots and shoes, a trimming or setting knife or tool having a posit-ive movement of reciprocation back and forth over the sole-edge to be operated on, substantially as and for the purposes shown and set forth.

2. In machinery for setting or trimmingthe edges of boot and shoe soles, the combination, with a jacking mechanism, ot' a trimming or setting tool or knife, mounted on and carried by a reciprocating supporting-arm, and capable of vertical and lateral.movements to enable it, while reciprocating, to adapt itself to the various portions ot' the sole-edge to be operated on, substantially as shown and described.

3. The coniibination, with the setting-tool, its supporting-arm, and the crank-wheel, otl the arm or lever intermediate between and connecting said supporting-arm and crankwheel, substantially in the manner and by the means shown and described.

4. In machinery for setting the edges of boot or shoe soles, a reversible double setting or trimming tool, consisting of a shank or handle provided at each end with a trimming or set- 5. The jacking mechanism herein described,

consisting of the heel-post, side guides, and toe-rest supported between said guides, in combination with the sliding Wedge and its actuating screw-spindle, said parts being arranged together for joint operation, in the manner shown and set forth.

6. The Combination, with the crank-Wheel and slide, of the auxiliary plate carrying the crank-pin, and mounted and adjustable longitudinally on said slide, substantially as and for the purposes shown and set forth.

Y In testimony' whereof I'have hereiinto signed my name this 28th day of January, A. D. 1874.

A. o.' CAREY.

'Witnesses GEO. T. ANGELI., ALFRED T. PERRY. 

